Modern mice, what with their sleek lines and ergonomic designs, make it easy to stay online for hours. Thankfully, mousing comfort wasn't always a concern, and after 15 minutes with this retro mouse you'll be too sore to surf.

The $20 boxy mouse turns its nose up at any modern wireless conveniences, instead preferring to stay tethered to your PC via a USB cable. Though it does seem to embrace the scroll wheel, an innovation that would have baffled computer users in the '80s. And the use of optical sensors, instead of that rubber ball you had to clean more often than a toddler. [ThinkGeek via Ubergizmo]